<template>
        <!-- 商品分类导航 -->
        <div class="type-nav">
            <div class="container">
                <h2 class="all">全部商品分类</h2>
                <nav class="nav">
                    <a href="###">服装城</a>
                    <a href="###">美妆馆</a>
                    <a href="###">尚品汇超市</a>
                    <a href="###">全球购</a>
                    <a href="###">闪购</a>
                    <a href="###">团购</a>
                    <a href="###">有趣</a>
                    <a href="###">秒杀</a>
                </nav>
                <div class="sort">
                    <div class="all-sort-list2">
                        <div class="item" v-for="(c1) in categoryList" :key="c1.categoryId">
                            <h3>
                                <a href="">{{c1.categoryName}}</a>
                            </h3>
                            <div class="item-list clearfix">
                                <div class="subitem">
                                    <dl class="fore" v-for="(c2) in c1.categoryChild" :key="c2.categoryId">
                                        <dt>
                                            <a href="">{{c2.categoryName}}}</a>
                                        </dt>
                                        <dd>
                                            <em v-for="(c3) in c2.categoryChild" :key="c3.categoryId">
                                                <a href="">{{c3.categoryName}}</a>
                                            </em>
                                        </dd>
                                    </dl>
                                </div>
                            </div>
                        </div>

                    </div>
                </div>
            </div>
        </div>
</template>

<script>
import {mapState} from 'vuex'
export default {
  name: 'TypeNav',
  data() {
      return {
          
      }
  },
  mounted(){
      // 这里的getCategoryList是自己定义的,不是vuex里的
      this.getCategoryList()
  },
  methods:{
      getCategoryList(){
          // 拧开关 触发分发 action对应的函数,本质是在调用action对象的函数
          this.$store.dispatch('getCategoryList')
      }
  },
  // 从vuex里面捞数据,用的computed  (states getters)
  // 从vuex里面捞方法, 用的是methods (actions mutations)
  computed:{
      // 写数组的时候必须满足两个条件
      // 1. 不能使用模块化
      // 2. 名字必须和vuex对应的名字相同
      ...mapState({
          categoryList:state => state.home.categoryList //state是调用的时候vuex自动传的,mapState也是vuex调用的
      })
  }
}
/*
    beforecreate
    created
    beforemount
    mounted
    beforeupdate

*/
</script>

<style lang="less" scoped>
    .type-nav {
        border-bottom: 2px solid #e1251b;

        .container {
            width: 1200px;
            margin: 0 auto;
            display: flex;
            position: relative;

            .all {
                width: 210px;
                height: 45px;
                background-color: #e1251b;
                line-height: 45px;
                text-align: center;
                color: #fff;
                font-size: 14px;
                font-weight: bold;
            }

            .nav {
                a {
                    height: 45px;
                    margin: 0 22px;
                    line-height: 45px;
                    font-size: 16px;
                    color: #333;
                }
            }

            .sort {
                position: absolute;
                left: 0;
                top: 45px;
                width: 210px;
                height: 461px;
                position: absolute;
                background: #fafafa;
                z-index: 999;

                .all-sort-list2 {
                    .item {
                        h3 {
                            line-height: 30px;
                            font-size: 14px;
                            font-weight: 400;
                            overflow: hidden;
                            padding: 0 20px;
                            margin: 0;

                            a {
                                color: #333;
                            }
                        }

                        .item-list {
                            display: none;
                            position: absolute;
                            width: 734px;
                            min-height: 460px;
                            background: #f7f7f7;
                            left: 210px;
                            border: 1px solid #ddd;
                            top: 0;
                            z-index: 9999 !important;

                            .subitem {
                                float: left;
                                width: 650px;
                                padding: 0 4px 0 8px;

                                dl {
                                    border-top: 1px solid #eee;
                                    padding: 6px 0;
                                    overflow: hidden;
                                    zoom: 1;

                                    &.fore {
                                        border-top: 0;
                                    }

                                    dt {
                                        float: left;
                                        width: 54px;
                                        line-height: 22px;
                                        text-align: right;
                                        padding: 3px 6px 0 0;
                                        font-weight: 700;
                                    }

                                    dd {
                                        float: left;
                                        width: 415px;
                                        padding: 3px 0 0;
                                        overflow: hidden;

                                        em {
                                            float: left;
                                            height: 14px;
                                            line-height: 14px;
                                            padding: 0 8px;
                                            margin-top: 5px;
                                            border-left: 1px solid #ccc;
                                        }
                                    }
                                }
                            }
                        }

                        &.item_on {
                            background-color: orange;
                            .item-list {
                                
                                display: block;
                            }
                        }
                    }
                }
            }
        }
    }
</style>
